Some Southern Californians were awakened by quakes from a magnitude 3.4 earthquake early Tuesday in southwest San Bernardino County.
The quake before dawn was centered near Rancho Cucamonga and Ontario around noon. 03:30. It was 4.3 miles deep.
There are no reports of injuries or damage.
Tremors were reported in San Bernardino and Riverside counties, La Verne, Rialto, Glendora, Orange, Fullerton, Anaheim and elsewhere.
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About 40 km to the northwest another earthquake struck early in the morning the mountain community in Alpine Village. The 3.3 magnitude earthquake was recorded around 5 a.m. at a depth of 7.4 miles.
The quake was 28.4 miles southwest of La Quinta, 31.4 miles southwest of Palm Desert and 31.7 miles southwest of Rancho Mirage.
No injuries or injuries were reported.
About 200 earthquakes in the magnitude of 3.0 to 4.0 are recorded in California each year. They are often felt but rarely cause injury.